1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.quickstep.util;
import static com.android.launcher3.LauncherAppTransitionManagerImpl.INDEX_SHELF_ANIM;
import static com.android.launcher3.LauncherState.BACKGROUND_APP;
import static com.android.launcher3.LauncherState.OVERVIEW;
import static com.android.launcher3.anim.Interpolators.OVERSHOOT_1_2;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.view.animation.Interpolator;
import com.android.launcher3.Launcher;
import com.android.launcher3.uioverrides.states.OverviewState;
/**
* Animates the shelf between states HIDE, PEEK, and OVERVIEW.
*/
public class ShelfPeekAnim {
public static final Interpolator INTERPOLATOR = OVERSHOOT_1_2;
public static final long DURATION = 240;
private final Launcher mLauncher;
private ShelfAnimState mShelfState;
private boolean mIsPeeking;
public ShelfPeekAnim(Launcher launcher) {
mLauncher = launcher;
}
/**
* Animates to the given state, canceling the previous animation if it was still running.
*/
public void setShelfState(ShelfAnimState shelfState, Interpolator interpolator, long duration) {
if (mShelfState == shelfState) {
return;
}
mLauncher.getStateManager().cancelStateElementAnimation(INDEX_SHELF_ANIM);
mShelfState = shelfState;
mIsPeeking = mShelfState == ShelfAnimState.PEEK || mShelfState == ShelfAnimState.HIDE;
if (mShelfState == ShelfAnimState.CANCEL) {
return;
}
float shelfHiddenProgress = BACKGROUND_APP.getVerticalProgress(mLauncher);
float shelfOverviewProgress = OVERVIEW.getVerticalProgress(mLauncher);
// Peek based on default overview progress so we can see hotseat if we're showing
// that instead of predictions in overview.
float defaultOverviewProgress = OverviewState.getDefaultVerticalProgress(mLauncher);
float shelfPeekingProgress = shelfHiddenProgress
- (shelfHiddenProgress - defaultOverviewProgress) * 0.25f;
float toProgress = mShelfState == ShelfAnimState.HIDE
? shelfHiddenProgress
: mShelfState == ShelfAnimState.PEEK
? shelfPeekingProgress
: shelfOverviewProgress;
Animator shelfAnim = mLauncher.getStateManager()
.createStateElementAnimation(INDEX_SHELF_ANIM, toProgress);
shelfAnim.setInterpolator(interpolator);
shelfAnim.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationCancel(Animator animation) {
mShelfState = ShelfAnimState.CANCEL;
}
@Override
public void onAnimationEnd(Animator animator) {
mIsPeeking = mShelfState == ShelfAnimState.PEEK;
}
});
shelfAnim.setDuration(duration).start();
}
/** @return Whether the shelf is currently peeking or animating to or from peeking. */
public boolean isPeeking() {
return mIsPeeking;
}
/** The various shelf states we can animate to. */
public enum ShelfAnimState {
HIDE(true), PEEK(true), OVERVIEW(false), CANCEL(false);
ShelfAnimState(boolean shouldPreformHaptic) {
this.shouldPreformHaptic = shouldPreformHaptic;
}
public final boolean shouldPreformHaptic;
}
}
|
